reducer

減的英語翻譯：

decrease; minus; reduce; subtract
【計】 SB; subtract

徑的英語翻譯：

diameter; directly; means; path; pathway
【醫(yī)】 diameter

管的英語翻譯：

canal; duct; fistula; guarantee; meatus; pipe; tube; wind instrument
【化】 pipe; tube
【醫(yī)】 canal; canales; canalis; channel; duct; ductus; salpingo-; salpinx
syringo-; tuba; tube; tubi; tubing; tubo-; tubus; vas; vaso-; vessel